家人做什么 英语作文
题目
家人做什么 英语作文
答案
there are three people in my family.my father,my mother and i.my father is cook,my mother is a teacher.my father always cook delicious food for me while my mother usually teache me how to be a good person.i have a happy family.
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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